Answer:
Simile - Suddenly, a striped orange cat galloped toward Janine like a racehorse.
Metaphor - Tiger's purr was a chainsaw that sliced through the air.
Personification - After she closed the door, silence slapped her in the face.
Explanation:
A simile, is figure of speech, that makes a comparison between two things, using the words "like", or "as". We can see that in the sentence, <em>"Suddenly, a striped orange cat galloped toward Janine like a racehorse." </em>, that the narrator is comparing how the cat galloped, to the gallop of a racehorse.
A metaphor, is a figure of speech that makes a comparison, <em>without</em> using the words "like" or "as". We can see that in the sentence, <em>"Tiger's purr was a chainsaw that sliced through the air"</em>, that the narrator is comparing Tiger's purr to a chainsaw.
A personification, is figure of speech, in which inanimate objects, are given human attributes. We can see in the sentence, <em>"After she closed the door, silence slapped her in the face"</em>, that the personification is, silence slapped her in the face. Because we can't physically feel and touch silence, there is no way that silence could do the same to us.